Obtained 21 stack frames.
/usr/games/crawl-git-e808afc3bc(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x5c3b63]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-e808afc3bc(_Z20crash_signal_handleri+0x1a5) [0x5c3f05]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f299ea1b4c0]: 
/usr/games/crawl-git-e808afc3bc() [0x7b0fd0]
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f299ea1b4c0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(waitpid+0x1c) [0x7f299edb184c]: 
/usr/games/crawl-git-e808afc3bc(_Z8call_gdbP8_IO_FILE+0x1db) [0x5c426b]: call_gdb(_IO_FILE*)
/usr/games/crawl-git-e808afc3bc(_Z13do_crash_dumpv+0x312) [0x5caee2]: do_crash_dump()
/usr/games/crawl-git-e808afc3bc(_Z20crash_signal_handleri+0x9c) [0x5c3dfc]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f299ea1b4c0]: 
/usr/games/crawl-git-e808afc3bc(_Z17mons_allows_beoghRK7monster+0x1c) [0x8e432c]: mons_allows_beogh(monster const&)
/usr/games/crawl-git-e808afc3bc(_Z21mons_allows_beogh_nowRK7monster+0x9) [0x903709]: mons_allows_beogh_now(monster const&)
/usr/games/crawl-git-e808afc3bc(_Z20can_convert_to_beoghv+0x5e) [0x6a2cfe]: can_convert_to_beogh()
/usr/games/crawl-git-e808afc3bc(_Z16fill_status_infoiP11status_info+0x7d2) [0xa484a2]: fill_status_info(int, status_info*)
/usr/games/crawl-git-e808afc3bc() [0x94268e]
/usr/games/crawl-git-e808afc3bc(_Z11print_statsv+0x54c) [0x948f9c]: print_stats()
/usr/games/crawl-git-e808afc3bc(_Z12startup_stepv+0xb42) [0xa34792]: startup_step()
/usr/games/crawl-git-e808afc3bc() [0xb92ac6]
/usr/games/crawl-git-e808afc3bc(main+0x2eb) [0xb9689b]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7f299ea0676d]: 
/usr/games/crawl-git-e808afc3bc() [0x52b599]